General Contractor Practice Exam

What is the maximum temperature permitted for liquids in pipes that are embedded in concrete?

1. 100 degrees F

2. 125 degrees F

3. 150 degrees F

4. 175 degrees F

The correct answer is: 150 degrees F

The maximum temperature permitted for liquids in pipes embedded in concrete is 150 degrees Fahrenheit. This standard is in place to minimize the risk of damage to both the concrete and the piping system itself. When liquids with higher temperatures flow through pipes that are surrounded by concrete, there is a potential for thermal expansion and contraction, which can lead to stress and eventual failure of the pipe or the surrounding concrete. At 150 degrees Fahrenheit, the materials are less likely to suffer from thermal degradation, and this temperature is often compatible with various piping materials such as PVC, CPVC, and others used in construction. Ensuring adherence to this temperature guideline is crucial for maintaining the integrity of both the pipe systems and the structural components of the building.